[ 365.9723904] panic: [ 366.0478893] vpanic() at netbsd:vpanic+0x2f0 sys/kern/subr_prf.c:288
[ 366.2477899] panic() at netbsd:panic+0x49 sys/kern/subr_prf.c:1116
[ 366.4077103] lockdebug_abort1() at netbsd:lockdebug_abort1+0x191 lockdebug_abort1 sys/kern/subr_lockdebug.c:814 [inline]
[ 366.4077103] lockdebug_abort1() at netbsd:lockdebug_abort1+0x191 sys/kern/subr_lockdebug.c:796
[ 366.5576360] lockdebug_wantlock() at netbsd:lockdebug_wantlock+0x457 sys/kern/subr_lockdebug.c:489
[ 366.6975650] rw_enter() at netbsd:rw_enter+0x887 sys/kern/kern_rwlock.c:300
[ 366.8275086] genfs_lock() at netbsd:genfs_lock+0x220 sys/miscfs/genfs/genfs_vnops.c:397
[ 366.9674314] VOP_LOCK() at netbsd:VOP_LOCK+0x22a sys/kern/vnode_if.c:1632
[ 367.1073588] vn_lock() at netbsd:vn_lock+0x2ae sys/kern/vfs_vnops.c:1388
[ 367.2472885] union_lookup() at netbsd:union_lookup+0x2e8 sys/fs/union/union_vnops.c:403
[ 367.3872232] VOP_LOOKUP() at netbsd:VOP_LOOKUP+0x131 sys/kern/vnode_if.c:443
[ 367.5371436] lookup_once() at netbsd:lookup_once+0x5ad sys/kern/vfs_lookup.c:1150
[ 367.6870701] namei_tryemulroot() at netbsd:namei_tryemulroot+0x1fba namei_oneroot sys/kern/vfs_lookup.c:1546 [inline]
[ 367.6870701] namei_tryemulroot() at netbsd:namei_tryemulroot+0x1fba sys/kern/vfs_lookup.c:1906
[ 367.8369939] namei() at netbsd:namei+0x2e sys/kern/vfs_lookup.c:1942
[ 367.9769269] do_sys_mknodat() at netbsd:do_sys_mknodat+0x292 fd_nameiat sys/kern/vfs_syscalls.c:245 [inline]
[ 367.9769269] do_sys_mknodat() at netbsd:do_sys_mknodat+0x292 sys/kern/vfs_syscalls.c:2408
[ 368.1168631] sys___mknod50() at netbsd:sys___mknod50+0x8f do_posix_mknodat sys/kern/vfs_syscalls.c:2334 [inline]
[ 368.1168631] sys___mknod50() at netbsd:sys___mknod50+0x8f sys/kern/vfs_syscalls.c:2351
[ 368.2567833] sys___syscall() at netbsd:sys___syscall+0x1e4 sy_call sys/sys/syscallvar.h:65 [inline]
[ 368.2567833] sys___syscall() at netbsd:sys___syscall+0x1e4 sys/kern/sys_syscall.c:90
[ 368.4067089] syscall() at netbsd:syscall+0x28b sy_call sys/sys/syscallvar.h:65 [inline]
[ 368.4067089] syscall() at netbsd:syscall+0x28b sy_invoke sys/sys/syscallvar.h:94 [inline]
[ 368.4067089] syscall() at netbsd:syscall+0x28b sys/arch/x86/x86/syscall.c:137
[ 368.4366941] --- syscall (number 450 via SYS_syscall) ---
[ 368.4766736] netbsd:syscall+0x28b:
[ 368.4766736] cpu0: End traceback...
[ 368.4898277] fatal breakpoint trap in supervisor mode
[ 368.4898277] trap type 1 code 0 rip 0xffffffff80235475 cs 0x8 rflags 0x246 cr2 0x1b3392a000 ilevel 0 rsp 0xffff910251418610
[ 368.5055534] curlwp 0xffff8f792f01ab00 pid 4389.5205 lowest kstack 0xffff9102514142c0
Stopped in pid 4389.5205 (syz-executor.5) at    netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xec sys/ddb/db_panic.c:71